1. CERN PH/DT 12/05/13 Jordan Degrange / Francisco Perez Gomez CERN PH/DT

2.  Concept remind  Vacuum table manufacturing and measurements  MM panels design  Future plans 12/05/13 Jordan Degrange / Francisco Perez Gomez CERN PH/DT

3.  A sandwich of two soft skin is glued without mechanical constraints.  A sandwich is: o One glass fibre skin (0.5mm) o Aluminium honeycomb surrounded with an aluminium frame o Second glass fibre skin (0.5mm)  Sandwich schematic view Jordan Degrange/Francisco Perez Gomez PH/DT

4.  Manufacturing concept o The skins are sucked with two vacuum tables o The vacuum table surfaces are perfectly flat o The vacuum table surfaces are set in parallel position Jordan Degrange / Francisco Perez Gomez PH/DT

5.  Dimensions: 1300X600  Manufactured at CERN  Outer surface: Epoxy gel coat ‘’EP Gel coat Weiβ’’ (1+1 reinforced layer).  Structural layer: Glass fibre “Glasgewebe 92150 FK-144 345g/m2 Leinwand’’ + AXSON Epolam 5015 (5 layers).  4 perforated sides aluminium honeycomb.  Araldite 2011

6. Jordan Degrange - Francisco Perez Gomez CERN PH/DT Gel coat + Glass fibre (3.5mm) Glass fibre (3mm) Perforated Al Honeycomb (60mm) Al profile (60X30mm) Al inserts (Ø40mm)

7. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

8. Perforated Al honeycomb

9. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

10. CERN Metrology labCERN PH/DT  Temperature: 20°C  Planarity : 0.077mm  Temperature : 21°C  Planarity : 0.08mm  Temperature : 22.5°C  Planarity : 0.03mm  There’s a temperature influence on flatness to be investigated. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

11.  Reference holes on boards for alignment  Ultem plugs to avoid drilling panels after assembly  All plugs are precisely pre-glued on the board using a dedicated tool  Aluminium frame pre-assembled on tool  Aluminium honeycomb  Araldite 2011 is the best candidate for gluing  Panel manufacturing in one shot Jordan Degrange - Francisco Perez Gomez CERN PH/DT

12. 4 reference holes. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

14. 4 reference holes. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

15. 2 pins Ø5g6 X Ø5,5g6 Jordan Degrange - Francisco Perez Gomez CERN PH/DT

16. Ref. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

17. Ø5.50 Ø5.0 Jordan Degrange - Francisco Perez Gomez CERN PH/DT Ø5.50

18. Jordan Degrange - Francisco Perez Gomez CERN PH/DT Alignment pin Reference plug glued Cyanoacrylate 3M EC100

19. Ref. Spacer Board Alignement Jordan Degrange - Francisco Perez Gomez CERN PH/DT

21. Ref. Jordan Degrange - Francisco Perez Gomez CERN PH/DT … vacuum pump ON

22. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

23. 2 reference holes per profile Jordan Degrange - Francisco Perez Gomez CERN PH/DT

26. Ref. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

27. Vacuum Table Ref. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

28. Precision shims (11,4mm)

29. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

30.  Assembled and glued on drift panel using alignment holes  Mesh glued on well defined surface.  Acts as gas manifold.  Large gluing area.  Ground connection Jordan Degrange - Francisco Perez Gomez CERN PH/DT

31. Joint groove Ground connection holes Gas IN/OUT

32. Gas IN/OUT (Ø2,5mm) Gas distribution channel Gas distribution holes (Ø0.5mm  Ø1.5m m) Cleaning channel Surface glued on drift panel Jordan Degrange - Francisco Perez Gomez CERN PH/DT

33. Alignment pin Board Fixation pins and ground connection Deflection = 0.01mm

34. Jordan Degrange - Francisco Perez Gomez CERN PH/DT

35.  Prepare all needed elements for 1 panel assembly (frame, plugs, pins, etc..)  Manufacturing of 1 full set of mesh support.  Investigation of temperature and humidity influence on VT flatness  Drill reference holes on vacuum tables.  Assembly and QC of 1 panel for tooling and procedure validation  Test on gas distribution  Test on mesh gluing  Ground connections tests  Test on zebra fixation  Electrical tests on Zebra connectors Francisco Perez Gomez / Hans Danielsson CERN PH/DT/EM2